Pithos_GSS » Java GSS CLI Client

	GSSCmdFactory factory = GSSCmdFactoryImpl.getInstance();

public interface GSSCmdFactory {

    public GSSCmd getGSSCmdInstance(String args[], UserInfo userInfo);

package gssclient.cli;

import gssclient.UserInfo;

import gssclient.commands.GSSCmd;

import java.util.HashMap;

import java.util.Map;

public class GSSCmdFactoryImpl implements GSSCmdFactory {

    private static final String GET_FILE = "get";

    private static final String PUT_FILE = "put";

    private static final String MKDIR = "mkdir";

    private static final String LIST = "ls";

    private static final Map<String, GSSCmdFactory> COMMANDS 

    	= new HashMap<String, GSSCmdFactory>();

    static {

	COMMANDS.put(GET_FILE, GetFileCmdFactory.getInstance());

	COMMANDS.put(PUT_FILE, PutFileCmdFactory.getInstance());

	COMMANDS.put(MKDIR, MkDirCmdFactory.getInstance());

	COMMANDS.put(LIST, ListPropertiesCmdFactory.getInstance());

    }

    private static GSSCmdFactory INSTANCE = new GSSCmdFactoryImpl();

    private GSSCmdFactoryImpl() { }

    public static GSSCmdFactory getInstance() {

	return INSTANCE;

    }

    public GSSCmd getGSSCmdInstance(String args[], UserInfo userInfo) {

	GSSCmdFactory factory = COMMANDS.get(args[0]);

	if (factory != null) {

	    return factory.getGSSCmdInstance(args, userInfo);

	} else {

	    return null;

	}

    }

 }

package gssclient.cli;

import gssclient.UserInfo;

import gssclient.commands.GSSCmd;

import gssclient.commands.GetFileCmd;

import java.util.Date;

/**

 * Class for creating GetFileCmd objects.

 */

public class GetFileCmdFactory implements GSSCmdFactory {

    private static final GetFileCmdFactory INSTANCE = 

	new GetFileCmdFactory();

    private GetFileCmdFactory() { }

    public static GetFileCmdFactory getInstance() {

	return INSTANCE;

    }

    public GSSCmd getGSSCmdInstance(String[] args, UserInfo userInfo) {

	GetFileCmd cmd = new GetFileCmd(userInfo, new Date(), 

		args[1], args[2]);

	return cmd;

    }

}

package gssclient.cli;

import gssclient.UserInfo;

import gssclient.commands.GSSCmd;

import gssclient.commands.ListPropertiesCmd;

import java.util.Date;

/**

 * Class for creating ListPropertiesCmd objects.

 */

public class ListPropertiesCmdFactory implements GSSCmdFactory {

	private static final ListPropertiesCmdFactory INSTANCE = 

	    new ListPropertiesCmdFactory();

	private ListPropertiesCmdFactory() { }

	public static ListPropertiesCmdFactory getInstance() {

	    return INSTANCE;

	}

	public GSSCmd getGSSCmdInstance(String[] args, UserInfo userInfo) {

	    ListPropertiesCmd cmd = new ListPropertiesCmd(userInfo, 

		    new Date(), args[1], null);

	    return cmd;

	}

}

package gssclient.cli;

import gssclient.UserInfo;

import gssclient.commands.GSSCmd;

import gssclient.commands.MkDirCmd;

import java.util.Date;

/**

 * Class for creating MkDirCmd objects.

 */

public class MkDirCmdFactory implements GSSCmdFactory {

	private static final MkDirCmdFactory INSTANCE = 

	    new MkDirCmdFactory();

	private MkDirCmdFactory() { }

	public static MkDirCmdFactory getInstance() {

	    return INSTANCE;

	}

	public GSSCmd getGSSCmdInstance(String[] args, UserInfo userInfo) {

	    MkDirCmd cmd = new MkDirCmd(userInfo, new Date(), 

		    args[1], null);

	    return cmd;

	}

}

package gssclient.cli;

import gssclient.UserInfo;

import gssclient.commands.CompositeCmd;

import gssclient.commands.GSSCmd;

import gssclient.commands.PutFileCmd;

import java.io.File;

import java.io.FileFilter;

import java.util.Date;

import org.apache.commons.io.filefilter.WildcardFileFilter;

/**

 * Class for creating PutFileCmd objects.

 */

public class PutFileCmdFactory implements GSSCmdFactory {

	private static final PutFileCmdFactory INSTANCE = 

	    new PutFileCmdFactory();

	private PutFileCmdFactory() { }

	public static PutFileCmdFactory getInstance() {

	    return INSTANCE;

	}

	public GSSCmd getGSSCmdInstance(String[] args, UserInfo userInfo) {

	    CompositeCmd cmd = new CompositeCmd();

	    /* First argument is the command name; last argument the

	     * the destination directory.

	     */

	    for (int i = 1; i < args.length - 1; i++)  {

		File file = new File(args[i]);

		if (file.isFile()) {

		    cmd.add(new PutFileCmd(userInfo, new Date(),

			    args[args.length - 1], args[i]));

		} else {

		    String name = file.getName();

		    if (name == null) 

			continue;

		    File dir = file.getParentFile();

		    if (dir == null)

			continue;

		    FileFilter filter = new WildcardFileFilter(name);

		    File[] filteredFiles = dir.listFiles(filter);

		    if (filteredFiles == null)

			continue;

		    for (File filteredFile : filteredFiles) {

			cmd.add(new PutFileCmd(userInfo, new Date(),

				args[args.length - 1], 

				filteredFile.getAbsolutePath()));

		    }

		}

	    }

	    if (cmd.isEmpty()) {

		return null;

	    } else {

		return cmd;

	    }

	}

}

     * Generates an HTTP method given the arguments. This is an instance of

     * the strategy pattern. Subclasses need to fill in the 

     * generateSpecificMethod, while this method does any general scaffolding

     * operations.

    // Implementing a fromString method on an enum type,

    // taken from Joshua Bloch's "Effective Java", 2nd edition.